Thematic Map

 

http://www.gigawiz.com/thematic.html

Thematic Maps purpose is to show a general theme of something and project it over a certain area. This is an example of a thematic map over the United States in which illustrates the different states that the Republican Party or the Democratic Party had the majority in January 2007.  As shown in the key in the lower section of the map the red colored states indicates that the Republican Party were the majority leaders at that point of time in January and the blue state are the Democratic Party.  There are over 26 states that are in favor for the Republican Party which means the Republican Party was leading as of January in 2007.